Riveting machine



F. H. SHAW.

RIVETING MACHINE.

APPLICATION FILED FEB. 23, I921.

1,402,901, Patented Jan. 10 1922.

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RIVETING MACHINE. APPLICATION FILED FEB. 23. I921.

Patented Jan. 10, 19221.

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FQ H. SHAW.

RIVETING MACHINE. "1;.APPLICATION FILED FEB. 23. 1921.

Patented Jan. 10,1922.

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TORNEY F. H. SHAW.

RIVETING MACHINE.

APPLICATION FILEDFEB. 23, I921.

Patented Jan. 10, 1922.

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STATES FRED H. SHAW, OF DALLAS, TEXAS.

RIVETING- MACHINE.

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Specification of Letters Patent. Patented Jan. 10, 1922.

Application filed February 23, 1921. Serial no. 446,999.

To all 107mm it may concern:

Be it known that I, FRED H. SHAW, a citi-' zen of the United States, residing at Dallas, in the county of Dallas and State of Texas, have invented certain new and useful Improvements in Riveting Machines, of which the following is a specification.

This invention relates to riveting ma the rivet and the bur to the work, and made further minor but important improvements, all of which will be more fully: understood by reference to the following description, taken in connection with the accompanying drawings, forming part hereof in which Figure 1 is a side elevational view of a riveting machine embodying the main fea tures of my invention. a I

Figure 2 is a front elevational view.

Figure 3 is an enlarged side elevational view ofthe upper part of the machine, the view being taken from the side opposite to that shown in Figure l.

Figure & is a detail sectional view of the lower end of the rivet feeding mechanism.

Figure 5 is a top view indetailof the rivet feeding mechanism.

Figure 6 is a cross-sectional view, taken on line 6-6 of Figure 3. I s

Figure 7 is a cross-sectional view taken on line 7-,7 of Figure 4. p p 3 Figures 8, 9, 10 and 11 are detail sectional views of the bur feeding mechanism, Figure 1O taken on line 1 O10 ofFigure 8. 1

Figure 12 is a vertical sectional view of the rivet cutting and headingfparts, th

resilient work-supporting plate or platform,

7 drill, etc. and

Figures 13and14. are detail views,. respectively, of the plunger and rivet holdmg fingers and the extreme upper part of the machine showing the cable and springs.

Referring more in detail to the drawings,

the machine has a standard 1 supported upon. the base 2 to which standard is secured an overhanging arm 3 to which is fastened by means of a supportet a magazine 5 containing rivets provided with an agitator 6 and an inclined chute 7 whereby rivets are fed automatically to the work. On the arm 3 is also placed afT-shaped framecomprising a stem or central rod .8 on the lower end of which is supported a sleeve 9 carrying the rivet fingers 11, see Figure 13, also a sleeve 12 adapted to ride up and down on a rod 11 against spring tension 13 to retract; the

sleeves 9 and 12 when the sleeve 9 is pressed upon the work. Thus when the work is placed upon the platform 36 and the sleeve 9 is brought downward to' hold the work in place, the lower end of the rod 14 will pros je'ct beyond the sleeve 12, see Figural.

To the upper end of rod 8 is a cross-head 15 on the ends of which are a plunger 16 under tension of a spring 17 and a rod 18 seat-ed upon the arm 3 with its spring 19, the

springs serving to retract to normal position the plunger after it has passed throughthe fingers 11 to bear against a rivet. The fingers 11-, preferably 6 in number, bear. upon all sidesof the rivet tocentralize its axisto the bur andwork. V

The lower endof the rivet chute 7 overhangs the upper end of a tubular chute 20 affixed to the arm 3 into which the rivets pass to the work. Thetubular chute 20 is secured in place by a collar22 and rod 23. On the rod 23 a lever2 is located, see Figure 3, which in conjunction with a forked member 25 on the? crossehead 15 automatically feeds the rivets onev by one through the end of the tubular chute 2 0.] In, Figure 1 is shown indetail the operation of the, lever 24:. A- hook-shaped member 26 is arranged in slots in the chute 20. Its lowersidewis concaved as depicted in Figure 7, andon' its shank is a spring .27. The lever 2 l bears against the shank of the member 26 and when the member 25 is pulled downward by a cable 28, it slides across the ,upper end of lever21 and pushesthe member 26 across the interior'of the tubularchute 20. When the member 26 moves out-ward it releases the head of the rivet 21, allowing it to fell upon the shank of thismemberwhich has the rivet-carrying member toward and from the platform, a magazine with a trackway and a tubular chute, means on the tubular chute coaeting With said raising and lowering means for feeding rivets t0 the work, means for feeding burs to said platform, means to prevent movement of the table when desired and a sleeve and spring a1'-' rangement on the rivet-carrying member for holding the Work in position.

In testimony whereof I have signed my name to this specification.

FRED H. SHAW. 

